Engine cant idle

nennedk

Petty Officer 3rd Class
Joined
Jun 11, 2016
Messages
77
What's going on here? There's no problem in starting the engine (after a couples of priming), but it keeps dying soon after as heard in video 1.
I can keep the engine running if I keep it above 1500 rpm.
Video 2 shows how revs is going up and down by it self, before it dies (when the engine is warmed up a bit)
Mercruiser 5.0L (2 BBL.) GM 305 V-8 from year 2001
 

Attachments

  • video1.mov
    47 MB · Views: 0
  • video2.mov
    41.7 MB · Views: 0

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
51,394
You have a leak at the carb base. You can see it in the video
 

nennedk

Petty Officer 3rd Class
Joined
Jun 11, 2016
Messages
77
It looks like the hose is off the valve cover PCV valve.
Well spottet. I think you are right and i had actually the hose off resently. I will look into it next time i’m at the boat, hopefully tomorrow
 

nennedk

Petty Officer 3rd Class
Joined
Jun 11, 2016
Messages
77
Ha ha, it was the hose. I believe I must forgot to put it back on after I have detached it. Now the engine runs smooth again. Thanks
 
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